Ventilating device



y Junez, 1942- L.. .LJENN 2,285,161

VENTILATING DEVICE Filed May l1, 1940 I 2 Sheets-Sheet l 7,# KA, |"/z {lhz/ :W

lli fa In u' 'Jul [y I6 15af I 771207307* Fig 5i. 'Laws J dif/wy June 2,1942. 1 .J.JENN 2,285,161

VENTILATING DEVICE I Filed May l1, 1940 2 Sheets-Sheet 2 Wwf |" "-f n 2 i" l EKL/fai .Y I /z in, if

7 2719. 4. f i 4&3,

l y I L/ N- da ,l Z g 4 3% M9 Patente-d June 2, 1942 UNITED STATES lfl-"iJlIN'1" OFFICE VENTILATINGDEVI'CE Louis J. Jenn, Minneapolis, Minn. Application May 11, 1940, Serial No. 334,541 v (cl. .9s- 29)` 4 Claims.

This invention relates to a Ventilating device and particularly to such a device adapted to draw fresh air from the exterior of a wall into a roomor to move air from a room to the outside thereof.

It is desirable in many rooms in business places and residences, particularly such rooms as kitchens, to have the air moved therefrom. to keep `the A,atmospherein a fresh condition and to eliminate odors. vIt is desirable to `have a simple, efficient` and inexpensive device which can be placedin an opening in a wall of a room so that air may be drawn Ainto or removed from said room and it Yis desirable` to Vhave such a device which can be placed in position for closing said opening when-ventilation is not desired.

It is an object of this invention, therefore, to provide a simple and efcient Ventilating device which can be produced and installed at comparatively small Vexpense and which can be used to draw airintogor force kair from a room and which `further is arranged to close the opening from said -room when not in use.

It is another object of the invention to'provide a devicecomprising a casing adaptedv to be disposed in `anopening through the wall of a room, a member mounted in said `casing having a passage therethrough which can be. positioned to form a passage through said casing and wall or which can be `turned to close the opening in said casing, :said member carrying means for moving air through said passage.

It is more specically an` object of the invention to provide a Ventilating device comprising a casing adapted to be disposed in an opening through the wall ofa room, a member mounted in said casing for rotation ,about a vertical axis having a passage therethrough, said'. member` having comparatively thickportions at the sides` of said passage whereby saidipassage` may be disposed` transversely of the wall to afford a passage therethrough or may be disposed substantially parallel'to said wall so that said thick portions will close .the opening through" said casing and wall, said member having a motor and fan driven thereby mounted thereon and disposed in said passage. K

These and other objects and advantages of the invention will be fully set forth in the following` description made in connection Withthe accompanying drawings in which like reference characters refer to similar parts throughout the several views and in which:

Fig. 1 is a view in front elevation of `saiddevice showing a portion of the wall in which it is disposed;

Fig. 2 is a central vertical section through the device shown inFig. 1;

Fig. 3 is a horizontal section taken substantially on line 3 3 of Fig. 2 as indicated by the Fig. 4 is a partial view in rear elevation of the device, some parts being broken away and.

others shown in vertical section;

Fig. 5 is a view similar to Fig. 3 showing the parts in a different position;

Fig.,6 is a horizontal section taken substantially on line 6 6 of Fig. 1 as indicated by the arrows; and

Fig. 'Tis a vertical section taken substantially on line 'I`'I of Fig. `6 as indicated by the arrow.

Referring to the drawings, adevice is shown comprising. la casing Il). Casing I0 is constructed and arranged to be disposed in an opening in a wall illustrated as II, which maybe an outsidewall of a room. While casing Il) could be formed of various materials, in the embodiment of the invention illustrated it is shown as formed 'of sheet material, such as `sheet metal and having a `top wall ma vengagingthe top of the openingthrough wall I and a bottom wall Ibengaging the bottom of the opening through wall II.- Said casing has a front side mc shown as substantially flush with the inner side of wall I I and said casing has a rear wall Illd shown as substantially flush with theV outer side of wall II.` Strips or blocks 9 are disposed in the corners of casing Il! YandY the front wall Ic and the rear wall ltd are formed as separate and removable plates and secured in position by screws Sa which extendftherethrough into blocks 3. A member I2 is disposed in casing II), said member being illustrated as in the form of a cylinder having a vertical axis. Member I2 is carried ion and secured to a bracket I3 disposed at the bottom thereof, screws I4 securing said bracket and member` together.- Bracket I3 is carried on and rotatable on another bracket I5 having a bearirrgythereon and while various types of bearings might be used, in the embodiment of the invention illustrated bracket I3 is shown as having `a hub with a hat lower end resting on theflat top surface of bracket I5. Bracket I5 is secured to lower wall iIlb by circumferentially spaced headed and nutted bolts I6 andsaid bracket has a `central hub 85a eX- tending through and somedistance below lower wall Ib; Bracket I3 Vis secured to Aa shaft I'I extending centrally therein by a pin I3, said shaft extending downwardly through hub Ia. Member I2 has a passage I2a extending centrally therethrough and while this passage might be variously formed, in the embodiment of the invention illustrated it is shown as cylindrical. Passage I2a when disposed with its axis extending transversely of wall II affords a passage through casing I0 and said wall as shown in Figs. 1 to 3. Casing I0 has a front opening IUe and a rear opening Illf. The front wall Ic of casing I0 has forwardly projecting portions Illy in the form of segments of a cylinder which extend outwardly and surround or enclose the top and bottom portions of member I2. Rear wall IIld has similar portions Ilg which extend outwardly and surround or enclose the upper and lower portions of member I2. Member I2 has extending therethrough in spaced relation vertical rods 20, the same being headed and provided with nuts at their lower ends, said heads and nuts engaging washers or blocks 2I of resilient material disposed at the outer sides of member I2. Rods 2 have iiattened portions a intermediate their ends and bolts Yor screws 22d extend through the portions Za and into lugs 22a extending from the casing of a motor 22, which motor is of the electrical type. Motor 22 is thus carried by and secured to rods 2D. Motor 22 has its armature shaft 22h projecting at the side thereof opposite rods 28 and a fan 24 has a hub 24a bored to t on shaft 22h, the same being held on said shaft by a set screw 25. It will be noted that the blades 24h of fan 24 are shaped to extend along the sides of motor 22. A conductor cable 26 is shown as extending from motor 22 through the bottom of member I2 and the ilange of bracket I3.

The casing Ill will preferably be disposed adjacent the ceiling of the kitchen or other room in which it is disposed. Shaft I'I is shown as extending downwardly some distance below casing Ill and a bracket 30 is shown secured to the inner Vside of wall II by screws 3I. A small gear or pinion 32 is secured to shaft I1 in any suitable manner as by pin 33, said pinion meshing A with a gear segment 34 mounted upon a headed stud 35 secured in a bracket 36 which is in turn secured by screws 31 to an inwardly projecting platelike portion 3a of bracket 30. Screws 31 are shown as headed and extending through a f slot 30h in portion 30a so that some adjustment of bracket 36 lengthwise of said slot is permitted. Bracket 36 has a hub 36a receiving the lower end of shaft I'I. A U-shaped member 38 having its bite portion concentric with segment 34 is secured to bracket 36 by screws 39, blocks of insulating material 40 being disposed between the ends of member 38 and bracket 36. As shown in Fig. 7 member 38 is offset upwardly at its inner portion from bracket 36. A contact arm 4I is secured'by screw 42 to segment 34, a block of insulating material 43 being disposed between member 4I and segment 34. Member 4I is offset upwardly and has a downwardly extending contact member 4Ia adapted to engage with contact portions 38a on member 38. Members 38 and 4I thus form a switch for controlling the circuit of motor 22. Suitable conductors 45 and 46 are secured to members 38 and 4I and will extend to motor 22 and the line respectively. Member 34 has a handle portion 34a which projects outwardly through an opening 30C in bracket 30. Bracket 3D and thus handle 34a will be disposed so as to be conveniently accessible to a person standing on the floor of a room. A hood 48 shown as formed from sheet material, such as sheet metal, is secured to the outer side of wall Il and extending about casing I0. Hood 48 has a flange 48a secured to wall II by screws 49. A suitable gear may extend across opening I 0e, the same being indicated in section in Fig. 3.

In operation, when it is desired to move air out of the room the device will be in the position shown in Figs. l to 3. At this time contact 4Ia will engage one of the contact portions 38a and handle 34a will be substantially at one limit of its movement. Passage IZa is alined with the openings Ille and I'Ilf of casing I0 so that a passage extends through wall II. Motor 22 will be driven and fan 24 will thus be driven and air will be moved from the room through passage I2la to the outside. If it is desired to draw fresh air from the outside into the room the operator can swing handle 34a and rotate pinion 32 through substantially degrees, thus rotating shaft I'I and member I2 so that fan 24 is disposed adjacent the outer side of wall II. Fan 24 will then draw air into the room through passage I2a. It will be noted that member I2 has quite thick portions at the sides of passage 52a and member` I2 can be disposed in an intermediate position as shown in Fig. 5 so that the portions at the sides of passage I2a close the openings IIJe and IO of casing IIJ. The openings through casing I are thus closed oi and air cannot pass either way through casing I' and wall II. The member I2 can be made of good insulating material and casing ID may contain insulating material thereabout so that there will be substantially no heat loss from the'room when member I2 is in the position shown in Fig. 5. It will also be readily seen that member I2 could be disposed in various positions between the position shown in Fig. 5 and that shown in Fig. 3 so that only a portion of passage I2a alines with the openings Ie and IIlf. The volume of air passing into or out of the room can thus be regulated by disposing member I2 in different positions. It will also be noted that fan 24 is quite accessible from one end of member I2 and can readily be removed from shaft 22h if desired by loosening screw 25. Cable 26 will, of course, be of suiiicient length so as to permit and not interfere with the oscillation of member I2. The blades 24h which are partially disposed at the sides of motor 22 will act to cool said motor in the rotation of said fan. Hood 48 protects the device from rain or snow. b

From the above description it is seen that I have provided a simple and eiiicient Ventilating device. The same can be made of small size and easily and inexpensively installed in the wall of a room. The device is constructed so that it will form an eicient closure for the Ventilating opening when it is not in use. The exterior of member I2 can be nicely iinished and if desired may harmonize with the wall as can also casing I0 so that the device is inconspicuous when in closed position. The device can easily be kept clean. When the device is in closed position the motor and fan are well protected in passage |211. The device has been amply demonstrated in actual practice and found to be very successful and efficient.

It will, of course, be understood that various changes may be made in the form, details, arrangement and proportions of the parts, without departing from the scope of applicants invention, which generally stated, consists in a device capable of carrying out the objects above tioned openings.

set forth, in the parts and combinations of parts disclosed and defined in the appended claims.

What is claimed is:

1. A Ventilating device for a room having in combination, a casing adapted to be disposed in an opening through a wall of said room and having inner and outer openings at opposite sides thereof disposed adjacent opposite sides of said wall, a second substantially cylindrical casing disposed in said casing and mounted for rotation therein about a central axis, said second casing having a passage extending therethrough and being rotatable through substantially 180 degrees so that the ends of said passage can be positioned adjacent either of said inner or outer openings in said first mentioned casing, said second casing also having portions between the ends of said passage closing said openings in said first mentioned casing when said second casing is in mid-position, a motor and fan driven thereby mounted in said passage in said second casing whereby said second casing may be moved into one position with said passage aligned with said first mentioned openings so that air will be drawn into said room by said fan or may be positioned in anotherposition with said passage aligned with said openings so that said motor will discharge air from said room or may be placed in mid-position closing said first men- 2. A Ventilating device for a room having in combination, a casing substantially rectangular in form adapted ,to be disposed in an opening through a wall of said room and having an inner opening adjacent one side of said wall and an outer opening adjacent the other side of said wall thus forming a passage through said wall, a second casing disposed in said first mentioned casing and mounted for rotation therein, said second casingV having a passage extending therethrough, the ends of which may be brought adjacent the openings in said first mentioned casing, said second casing having portions between the ends` of said passage adapted to close said openings in said rst mentioned casing, a motor mounted in said second mentioned casing in said passage, a fan carried by and driven by said motor, a shaft supporting said second casing for rotation in said first mentioned casing, means carried by said first mentioned casing supporting said shaft, said second casing being rotatable through degrees so that it can be positioned with said passage aligned with said iirst mentioned openings and said motor and fan positioned to draw air intosaid room or it may be positioned with said passage aligned with said openings and said motor and fan positioned to discharge air from said room or it may be positioned midway between said positions to close said first mentioned openings.

3. The structure set forth in claim 8, means for rotating said shaft and a switch for said motor simultaneously operatedf by said last means.

4. A Ventilating device for a "room having in combination, a casing adapted to be disposed in an opening through a wall of said room and having inner and outer openings at opposite sides thereof disposed at opposite sides of said wall, a second casing disposed in said casing and mounted for rotation therein, said second casing having a passage therethrough and portions between the ends of said passage adapted to close or partially close said first mentioned openings, a motor mounted in said second casing, a fan carried by said motor and means for rotating said second casing through substantially 180 degrees so that it can be positioned with said passage extending between said first mentioned openings with said motor and fan in position to draw air into said room,v so it can be positioned with said passage extending between said openings and said fan and motor disposed to discharge air from said room, so it can be disposed midway between said positions to close said first mentioned openings or so that it can be placed in intermediate positions to partially close said first mentioned openings.

LOUIS J. JENN. 

